Boiler and economizer.



Patented May 13, 1913.

3 SHEETS-SHEET 1 P. W. BRITTS.

BOILER AND EOONOMIZER.

APPLICATION FILED JUNE 11, 1908,

Patented May 13, 1913.

3 SHEETS-SHEET 2 P. W. BRITTS.

BOILER AND EGONOMIZEE.

APPLICATION FILED JUNE 11, 1908.

1,061,444. Patented May 13, 1913.

3 SHEETS-SHEET 3.

muentoz attoznugo UNITED STATES PATENT OFFICE.

PETER WILLIAM BRITTS, OF ARLETA, OREGON.

BOILER AND E'co'NoMIzER.

Application filed June 11, 1908.

To all whom it may concern:

Be it known that I, PETER W. BRrr'rs, a citizen of the United States,residing at Arleta, in the county of Multnomah and State of Oregon, haveinvented a new and useful Boilerand Economizer, of which the followingis a specification.

This invention relates to a combination of a boiler with a fueleconomizer, the latter being in the form of a feed water heater attachedto the boiler.

The. invention has for its object to improve the efliciency of boilersand fuel economizers, to simplify the construction of such devices, todecrease the amount-of useful space occupied by the economizer, and suchother objects as will hereinafter be more apparent.

The invention consists, in general, of a boiler arranged in asubstantially horizontal position, in combination with a feed waterheater arranged in a vertical position and lying below the plane of theboiler.

The invention further consists in certain novel arrangement of furnaceor boiler settings to accomplish these results.

The invention further consists in certain novel details of arrangement,and combinations of parts, hereinafter fully described, illustrated inthe accompanying drawings, and specifically set forth in the claims.

In the accompanying drawings, like characters of reference indicate likepartsin the several views, and; Figure 1 is a median section of thepreferred form of the device. Fig. 2 is a similar section of thisinvention showing the device as applied with a brick setting and a watertube feed water heater. Fig. 3 is a similar section to Fig. 2 butwith afire tube water heater.

Referring now to the form illustrated in Fig. 1, there will be seen afire-box 1Ov formed in a boiler of the locomotive type as illustrated at11. In this boiler there is the usual grate 12 and fiues or, tubes 13.In the place usually occupied by the smokebox there is what? ispreferably termed a combustion chamber 14, which is. extended downwardas at 15 to form a feed water heater chamber. At the lower end of thisfeed water heater chamber is an opening 16 communicating with a stack17. In the feed water heater chamber 15 is held a feed water heater 18,in the present instance of a water tube type. This feed water heater isconnected at the upper end to the boiler Specification of LettersPatent.

Patented May 13, 1913. Serial No. 4383001.

11 by a pipe 19 and the lower end thereof is provided with a Watersupply pipe 20.

In theformshown in Fig. 2 the'deviceis similar in character with theexception that the boiler 11 is in the form of a cylindrical boiler andis preferably without the tubes 13. Furthermore, the front wall of thefire box 10, forms one side of the chamber 15 of Fig. 1, and thecombustion chamber, and other parts of the boiler are housed in bricksor the like.

In the form shown in Fig. 3 the parts are precisely similar to thoseshown in Fig. 2 with the exception that the feed water heater itself isof the fire tube type, the fire tube being indicated by the numeral 21."

In all of the forms shown there is provided a by-pass 22 at the upperend of the economizer wherein is located a damper 23. By this means I amable to direct the hot gases through the stack carrying them through theeconomizer and it is found frequenty that this is necessary when thefire is first started to heat the stack and there is preferably a damperheld therein so as to direct the smoke in either manner. It is to benoted that if desired a fan may be used in connection with this devicefor draft. It is to be noted that in all of the forms described therelatively cold water isadmitted at the bottom of the water heater, thatis to say, at the point at which the gases of combustion are cooled, andfrom there rises upward through the gases of combustion which are hotteras the feed water approaches the top and is fed into the boiler throughthe pipe 19 in substantially a boiling condition. It is thus seen thatthe fuel economizer provided in this peculiar feed water heater isexceptionally efficient and is so arranged as to absorb the greatestnumber of heat units from the outflowing gases of combustion. It is tobe further observed that by the present arrangement of the boiler andfeed water heater or economizer, the lat-- ter forms substantially aportion of the boiler and that by the peculiar disposition of thiseconomizer no floor or air space is taken up thereby. as the same is soarranged as to be readily sunk in the ground or held in the cellar ofthe building in which the boiler is located.

There is thus provided a simple and efficient device of the characterdescribed, and one in which the products of combustion are very fullyutilized by the heating'nfthe feed Q r 1,061,444 I Having thus describedthe invention what i is claimed as new, and is desired to be secured byLetters Patent, is':

1. A boiler and economizer, comprisin a fire box including grate bars, ahorizontzfily extending smoke chamber, a boiler, a feed water heater inthe smoke chamber having its upper end disposed above the plane of thegrate bars and below the plane of the boiler crown sheet, a horizontalsmoke stack adjacent said smoke chamber, a connection between said smokechamber and said smoke stack below the lower end of said feed wateriieater, a by-pass leading from said smoke chamber to said smoke stackadjacent the upper end of said feed water heater, means for controllingpassage through the said bypass a feed water pipe communicating with thelowest point ofvthe feed water heater,

and a pipe connecting the top of said feed water heater to the saidboiler.

2. The combination with a, horizontal boiler, a horizontal fire box,vertical smoke chamber and vertical smoke stack, of a feed water heaterlocated in said smoke chamber, the upper end of which lies above thefire grate of the fire box and below the plane of the crown sheet of theboiler, communication betweeii the lower end of said smoke chamber' andsaid smoke stack, said communication lying below the lower end of saidfeed water heater, a by-pass leading from a point adjacent to the upperend of the feed water chamber to the stack, means for controllingpassage through said by-pass, said feed water pipe communicating withthe lowest point of the feed water heater, and an upwardly extendingpipe connecting the top of said feed water heater to the said boiler.

In testimony that I claim the foregoing as my own, I have hereto affixedmy signature in the presence of two witnesses.

PETER WlLLIAM BRITTS.

Witnesses:

C. R. HoToHKIss, N. A. LOVGREN.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. G.

